@misc{1191511,
  author = {Kathryn M Schwartz},
  title = {Circular of the Bureau of Standards no. 503::statutory net-content marking requirements for packages (undefined) and packages of foods, drugs, and cosmetics},
  year = {1950},
  month = {1950-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.CIRC.503},
  language = {en},
}